From 9fdc2aff5381753c8f9a5bc69717af98ef59ab60 Mon Sep 17 00:00:00 2001
From: Jim Rollenhagen <jim@jimrollenhagen.com>
Date: Tue, 22 Mar 2016 14:37:21 +0000
Subject: [PATCH] Fix sphinx docs build

When building docs with sphinx, the objects.register_all() code path is
not necessarily called, and therefore objects.* is not necessarily
imported before it is used. This throws an error while building the
sample ChassisCollection response.

If objects.Chassis is not available, call register_all() before using
it.

Change-Id: Ic0041085639f3d5a900ad54c2637c77aa467ba35
Closes-Bug: #1560508
---
 ironic/api/controllers/v1/chassis.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ironic/api/controllers/v1/chassis.py b/ironic/api/controllers/v1/chassis.py
index 819278faec..df5f9df78d 100644
--- a/ironic/api/controllers/v1/chassis.py
+++ b/ironic/api/controllers/v1/chassis.py
@@ -143,6 +143,9 @@ class ChassisCollection(collection.Collection):
 
     @classmethod
     def sample(cls):
+        # FIXME(jroll) hack for docs build, bug #1560508
+        if not hasattr(objects, 'Chassis'):
+            objects.register_all()
         sample = cls()
         sample.chassis = [Chassis.sample(expand=False)]
         return sample